How can I skip the zeros in a matrix?
I have a matrix with columns filled with zeros and I want to copy the
matrix into a new matrix but to skip the columns with the zeros.
Is there any command that can help me? I tried to do it with the sparse
command but I didn't really understand what happens there. It skips the
zeros but when you want to know how many columns you have in the new
matrix it still shows the initial size.
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